D. Brine Pump & Recirculating Pump Maintenance: (AMF)
Note: 'For Helwig Pump See attached Addendum #1)
When running constantly, the unit will heat up to nearly 700F above room temperature. IT WILL BE VERY HOT
TO TOUCH. This hot running temperature is normal.
2. Changing Lubricating Oil:
The oil should be changed every six months or every 2000 operating hours.
To lubricate the pump remove Lubrication the 224 oil cover plate
located on top of the pump.
The oil may be drained by removing the 1/4" NPT Drain Plug, Part
No. 909 located at the front of pump.
The pump requires one quart of lubricating oil, Precision Part No.
205. Substitutes are Shell Tellus 21 or Mobile Velocite No. 10.
3. Changing the Diaton (Diaphragm):
Switch pump OFF. Release pressure in pumping line. Disconnect
suction and discharge tubing from cartridge valve.
Unscrew the four head screws and remove head and cartridge